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All Journal Sosiohumaniora Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal IMAGE Almana : Jurnal Manajemen dan Bisnis Journal of Information System, Applied, Management, Accounting and Research Journal Of Management Science (JMAS) eCo-Buss Dinasti International Journal of Education Management and Social Science International Journal of Finance Research International Journal of Community Service & Engagement International Journal of Marketing and Human Resource Research Operations Research: International Conference Series Transformasi Manageria: Journal of Islamic Education Management Jurnal Economica: Media Komunikasi ISEI Riau Journal of Public Representative and Society Provision
Riyandi Nur Sumawidjaja
Universitas Indonesia Membangun (INABA), Bandung
Religion Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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Effect of Cash Turnover, Receivable Turnover and Inventory Turnover on Return on Investment (ROI) at PT. Kimia Farma Tbk Hermayani, Regitha Aulia; Sumawidjaja, Riyandi Nur
International Journal of Community Service & Engagement Vol. 6 No. 1 (2025): International Journal of Community Service & Engagemen
Publisher : Training & Research Institute - Jeramba Ilmu Sukses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47747/ijcse.v6i1.2657

Abstract

This study examines the effect of cash, accounts receivable, and inventory turnover on return on investment at PT Kimia Farma Tbk for 2019-2023. The data in the study are secondary data sourced from financial data on the Kimia Farma Website. Statistical analysis techniques include regression testing, correlation, determination, and hypothesis testing. The results showed that Cash Turnover positively and significantly affected Return On Investment. In contrast, Receivables Turnover and Inventory Turnover negatively and significantly affected Return On Investment. Overall, the three ratios are positive and significant to the Return On Investment of PT Kimia Farma Tbk in that period
PENGARUH LINGKUNGAN KERJA, MOTIVASI, DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN PT GELINDO GARMENTAMA PADA DEPARTEMEN QC Jerisna, Jimjim; Sumawidjaja, Riyandi Nur
Journal of Information System, Applied, Management, Accounting and Research Vol 9 No 1 (2025): JISAMAR (December-February 2025)
Publisher : Sekolah Tinggi Manajemen Informatika dan Komputer Jayakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52362/jisamar.v9i1.1761

Abstract

This study aims to evaluate the relationship between Work Environment, Motivation, Work Discipline, and Employee Performance in the QC Department of PT Gelindo Garmentama and to determine the extent to which these variables influence Employee Performance. Using a quantitative method with a descriptive and verificative approach, the study collected primary and secondary data through documentation. The entire population, consisting of 80 respondents, was taken as a sample using a total sampling method. Data analysis involved descriptive techniques, classical assumption tests, multiple regression, and hypothesis testing, including both partial and simultaneous analysis. Descriptive analysis showed that Employee Performance, Work Environment, Motivation, and Work Discipline scored 1.241, 820, 1.374, and 1.215, respectively, all of which fall into the high category. The research findings confirm that Work Environment, Motivation, and Work Discipline significantly affect Employee Performance, both individually (partially) and collectively (simultaneously).
The Influence of Capital Adequacy Ratio, Non-Performing Loan, and Loan to Deposit Ratio on Return on Assets : on State-Owned Enterprise Banks is listed on the Indonesia Stock Exchange for the 2015-2024 Period Adhitama, Prayoga Tri; Sumawidjaja, Riyandi Nur
International Journal of Finance Research Vol. 6 No. 2 (2025): International Journal of Finance Research
Publisher : Training & Research Institute - Jeramba Ilmu Sukses (TRI-JIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47747/ijfr.v6i2.2826

Abstract

This study examines how CAR, NPL, and LDR influenced ROA of SOE Bank from 2015 to 2024. The study's secondary data was collected from the websites of each bank's financial reports. Hypothesis testing, correlation coefficient analysis, regression analysis, classical assumption testing, and coefficient of determination analysis are examples of statistical analysis procedures. The findings demonstrated that LDR negatively impacts ROA, NPL negatively and significantly impacts ROA, and CAR positively and significantly impacts ROA. All things considered, the ROA of SOE banks that were listed at the time on the IDX was significantly influenced by these three ratios taken together.
Comparative Analysis of Active and Passive Portfolios with the Single Index Model and Capital Asset Pricing Model in Indonesia: Policy Directions in the Capital Market Sudarmadji, Harrys; Sudaryo, Yoyo; Sofiati, Nunung Ayu; Ismail, Gurawan Dayona; Sumawidjaja, Riyandi Nur
Journal of Public Representative and Society Provision Vol. 5 No. 3 (2025): Journal of Public Representative and Society Provision
Publisher : Pusat Studi Pembangunan dan Pemberdayaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55885/jprsp.v5i3.727

Abstract

This research conducts a comparative analysis between active and passive investment portfolios using two fundamental models in finance: the Single Index Model (SIM) and the Capital Asset Pricing Model (CAPM). The study focuses on stocks traded on the Indonesia Stock Exchange (IDX) that were not consistently included in the prestigious LQ45 Index during the period from January 2015 to June 2025. Using a rigorous quantitative method, the research compares portfolio performance, return, and risk under different strategies. The results conclusively indicate that portfolios designed with the Single Index Model consistently outperform those based on CAPM, and that active strategies deliver superior performance compared to passive ones. Beyond financial performance, the findings also carry significant policy implications. The consistent superiority of SIM suggests that regulators and market authorities should integrate simplified yet effective portfolio models into investor education initiatives. Similarly, the outperformance of active strategies highlights the importance of strengthening corporate disclosure standards and ensuring fair access to timely information, so that both institutional and retail investors can benefit equitably. By linking quantitative evidence with governance concerns, this study provides valuable insights for investors while offering policy directions to enhance transparency, inclusivity, and investor protection in Indonesia’s capital market.
Generational Analysis of Financial Decision- Making Among Gen-X, Gen-Y, and Gen-Z Sudaryo, Yoyo; Suryaningprang, Andre; Sumawidjaja, Riyandi Nur; Febriyanti, Diah; Zulfiqar, Mochammad
Operations Research: International Conference Series Vol. 6 No. 3 (2025): Operations Research: International Conference Series (ORICS)
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v6i3.397

Abstract

This study aims to examine the influence of demographic factors on the financial decision-making behavior of three generational cohorts Gen-X, Gen-Y, and Gen-Z in urban Indonesia, focusing on Jakarta, Bandung, and Surabaya. Using a quantitative approach, data were collected through an online survey with 381 respondents and analyzed using ANCOVA and Kruskal- Wallis tests. The findings reveal that income significantly impacts financial decision-making, with higher-income individuals making more informed choices. Women and Gen-Y demonstrate stronger saving discipline and cost-optimization strategies, while city- specific patterns highlight differences in financial behaviors, such as timely payments and discount awareness. Gender and occupation show no significant overall effects, though some variations exist in specific behaviors. These results provide theoretical insights into behavioral accounting, particularly in understanding the role of income and demographic contexts in shaping financial behaviors. Practically, the study informs financial advisors and policymakers to design tailored education and advisory programs for different demographic groups. The study offers a novel contribution by utilizing ribbon chart visualizations to uncover intergenerational and intercity financial behavior patterns in Indonesia.
The Effect of Motivation and Competence on Employee Performance with Job Satisfaction as a Mediating Variable (Case Study at The Cidadap District Office of Bandung City) Admaja, Firma Agustin Dwi; Yuningsih, Salsa Billa Putri; Ismail, Gurawan Dayona; Sofiati, Nunung Ayu; Sumawidjaja, Riyandi Nur
Dinasti International Journal of Education Management And Social Science Vol. 7 No. 1 (2025): Dinasti International Journal of Education Management and Social Science (Octob
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v7i1.5346

Abstract

This study aims to analyze the influence of motivation and competence on employee performance directly and indirectly through job satisfaction as a mediating variable at the Cidadap Subdistrict Office in Bandung City. The research employs a quantitative approach and utilizes survey data collected from 52 employees through structured questionnaires measured on a Likert scale. Data analysis is conducted using Structural Equation Modeling with Partial Least Squares (SEM-PLS) to evaluate measurement validity, reliability, and the hypothesized relationships. The findings reveal that motivation significantly affects employee performance both directly and through job satisfaction. Competence influences job satisfaction positively and substantially but does not have a direct significant impact on performance. Job satisfaction serves as a critical mediator enhancing the relationship between motivation and competence toward performance. The results highlight that fostering motivation and developing competence with supportive job satisfaction mechanisms are essential strategies for improving employee outcomes in public sector institutions. This research provides practical implications for management in promoting effective human resource development and enhancing service quality in local government offices.
The effect of return on assets, return on equity, and firm size on company value in infrastructure companies listed on the BEI in 2018-2022 Budiantara, Jaka Perbawa; Supiyadi, Dedi; Sumawidjaja, Riyandi Nur; Sudaryo, Yoyo
Junal Ilmu Manajemen Vol 7 No 1 (2024): January: Management Science and Field
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/jmas.v7i1.463

Abstract

In the ongoing industrialization era, business progress is growing rapidly, driven by very tight competition. The decline in share value in the infrastructure sector is the result of intense and growing business competition. This phenomenon encourages investors to make careful considerations before making investment decisions. Thus, the company has the opportunity to strengthen and increase its capital liquidity. This research was conducted on four large companies that have been specified, namely PT Smartfren Telecom Tbk, PT Indosat Tbk, PT Telkom Indonesia (Persero) Tbk, and PT Wijaya Karya (Persero) Tbk. The research method uses a quantitative approach with a purposive sampling method on company financial reports and applies Panel Data Regression techniques. Data analysis using the t test (Partial Test) and Simultaneous Test (F Test) revealed that, partially, Return on Assets (ROA) has no significant effect on company value. On the other hand, Return on Equity (ROE) and Company Size (Firm Size) have a significant effect on company value. Simultaneously, ROA, ROE, and Firm Size together influence company value by 48%, while other factors also play a role. The analysis was carried out through multiple linear regression using Eviews 10 software and described the calculation results of the classical assumption deviation test. This research is expected to provide considerations for companies in increasing company value and attracting the interest of more investors.
Co-Authors Adhitama, Prayoga Tri Admaja, Firma Agustin Dwi Andre Suryaningprang Budiantara, Jaka Perbawa Erna Herlinawati Fajrian, Fajar Febriyanti, Diah Gurawan Dayona Ismail Hermayani, Regitha Aulia Husni Abdullah Ismail, Gurawan Dayona Jerisna, Jimjim Juliana, Ditha Putri Luska Lusyana Sari Muzaki, Zahra Hasna Rama Chandra Jaya Salsabila, Nabilah Senjaya, Eka Siddiq, Andhika Mochamad Sofiati, Nunung Ayu Sudarmadji, Harrys Supiyadi, Dedi Yoyo Sudaryo Yuningsih, Salsa Billa Putri Zulfiqar, Mochammad